64366780

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{7681}}^1$

素因数の和:8109

約数の個数: 24

約数和(自身を含む): 135510480

約数和(自身を除く): 71143700

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 4190, 7681, 8380, 15362, 30724, 38405, 76810, 153620, 3218339, 6436678, 12873356, 16091695, 32183390, 64366780]

約数ペア:

[(1, 64366780), (2, 32183390), (4, 16091695), (5, 12873356), (10, 6436678), (20, 3218339), (419, 153620), (838, 76810), (1676, 38405), (2095, 30724), (4190, 15362), (7681, 8380)]